create_rootfs_and_kernel

#!/bin/bash -e

# Copyright (C) 2018 Gunter Miegel coinboot.io
#
# This file is part of Coinboot.
#
# Coinboot is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.

# The Kernel to use is set by the environment variable DEBIRF_KERNEL
# Don't mix this up with DEBIRF_KERNEL_PACKAGE which defines a locally available
# Debian package to be used.
#export DEBIRF_KERNEL=4.4.0-133-generic

apt update
apt install --yes debirf bc sudo

# We have a customized version of debirf
# with an adapted 'init' script able to
# pull and extract plugins.
cp /mnt/debirf /usr/bin/debirf

# Lets replace single threaded gzip
# with pgiz that can use multiple cores.
# Also set some symlink to use it as
# drop-in-replacment.
apt install --yes pigz lbzip2 pbzip2

ln -fs /usr/bin/lbzip2 /usr/local/bin/bzip2
ln -fs /usr/bin/lbzip2 /usr/local/bin/bunzip2
ln -fs /usr/bin/lbzip2 /usr/local/bin/bzcat
ln -fs /usr/bin/pigz /usr/local/bin/gzip
ln -fs /usr/bin/pigz /usr/local/bin/gunzip
ln -fs /usr/bin/pigz /usr/local/bin/zcat

# FIXME: Setting variant=minbase shrink the rootfs archive by ~10M, but access over network and serial fails.
# sudo sed -i 's#eval "/usr/sbin/debootstrap $OPTS"#eval "/usr/sbin/debootstrap --variant=minbase $OPTS"#' $(which debirf)

# debootstrap can not handle that /vagrant is mounted with noexec or nodev
# so we copy the debirf profile to /tmp
cp -vr /mnt/profiles/coinboot /tmp

# export variables of the debirf profile
source /mnt/profiles/coinboot/debirf.conf

which debirf

ls -la /tmp

#Force a root build without fakeroot
time debirf make -n --root-build --no-warning /tmp/coinboot

sudo cp -v /tmp/coinboot/vmlinuz* /mnt/build/coinboot-vmlinuz-$DEBIRF_KERNEL
sudo cp -v /tmp/coinboot/*.cgz /mnt/build/coinboot-initramfs-$DEBIRF_KERNEL

sudo chmod -v 644 /mnt/build/*